CN104524952A - Smoke treatment device - Google Patents
Smoke treatment device Download PDFInfo
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- CN104524952A CN104524952A CN201510017060.9A CN201510017060A CN104524952A CN 104524952 A CN104524952 A CN 104524952A CN 201510017060 A CN201510017060 A CN 201510017060A CN 104524952 A CN104524952 A CN 104524952A
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- gas
- medicament
- rotating cylinder
- demister
- flue gas
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Abstract
The invention discloses a smoke treatment device which is used for removing heavy metal and arsenic in smoke. The smoke treatment device comprises a gas-liquid mixing reactor (1) and a rotary demister (2) wherein a smoke inlet (11) is formed in the top wall of the gas-liquid mixing reactor (1), a smoke outlet (12) is formed in the side wall of the gas-liquid mixing reactor (1), a reaction drum (13) is arranged inside the gas-liquid mixing reactor (1), smoke reacts with chemicals in the reaction drum (13) inside the gas-liquid mixing reactor (1), so that heavy metal and arsenic in smoke are removed, a smoke inlet (21) is formed in the side wall of the rotary demister (2), a smoke outlet (22) is formed in the top wall of the rotary demister (2), a dehumidification drum (23) is arranged inside the rotary demister (2), and moisture in smoke can be removed through the dehumidification drum (23) inside the rotary demister (2). According to the smoke treatment device, the contact area between smoke and a gas-liquid mass transfer in the device is increased remarkably, reaction efficiency is greatly improved, and the amount of added chemical is reduced; meanwhile, PM2.5 in smoke is effectively intercepted and is prevented from being discharged.
Description
Technical field
The present invention relates to a kind of fume treatment auxiliary, particularly relate to the heavy metal of micro content and the treatment facility of arsenic in flue gas in a kind of smelting industry and ring collection flue gas.
Background technology
The purified treatment of flue gas, general adopts liquid or solid adsorbent and flue gas generation adsorption reaction thus the pollutant removed in flue gas.At present, the process of existing flue gas mainly concentrates on flue gas desulfurization, dedusting aspect, and except sulfur-bearing, also generally contains the pollutants such as heavy metal ion, arsenic and dirt in the flue gas during smelting produced in nonferrous metallurgical process and ring collection flue gas.
At present, be all generally heavy-metal ion removal and arsenic while of adopting sulfur removal technology, and no matter dry desulfurization or wet desulfurizing process, very limited to the removal efficiency of heavy metal in flue gas ion and arsenic.Such as, in dry desulfurizing process, activated coke cannot be made to be separated with heavy metal and arsenic after activated coke Adsorption of Heavy Metals and arsenic ion at subsequent technique, after therefore running a period of time, activated coke no longer possesses the ability of Adsorption of Heavy Metals and arsenic.In addition, when the heavy metal ion in flue gas and arsenic too high levels, common sulfur removal technology cannot ensure that the every pollutant in flue gas all reaches discharge standard.
No matter be wet method or dry technique, the principle removing the pollutant in flue gas is all carried out shifting or transforming by the pollutant component in flue gas, in flue gas purifying reaction tower, mass transfer reaction occurs.According to mass transfer theory, in tower, enough contacts area and reaction time should be had between gas and liquid or solid medicament.So the maximum difficulty that gas cleaning process faces is exactly the interphase mass transfer between flue gas and adsorbate.
In addition, under the mechanism of solution-air or gas-solid mass transfer, want every pollutant of removing in flue gas and make it qualified discharge, being only difficult to accomplish by a set of desulfurization, cleaner.There is the shortcomings such as gas-liquid mass transfer is uneven, not obvious to the removal effect of heavy metal in flue gas ion and arsenic, apparatus and process is complicated, operating cost is high, floor space is large, can produce a large amount of waste water, by-product recovery rate is low in normal wet desulfurization.And the restriction of dry desulfurizing process existence condition, and investment and operating cost huge, to shortcomings such as the poor removal effect of heavy metal in flue gas and arsenic.
Summary of the invention
The object of the present invention is to provide one to make, flue gas and medicament are full and uniform mixes, and realize the fume treatment auxiliary of the removal heavy metal in flue gas ion of rapid mass transfer, arsenic and dirt.
For achieving the above object, the concrete technical scheme of a kind of fume treatment auxiliary of the present invention is:
A kind of fume treatment auxiliary, for removing heavy metal in flue gas and arsenic, comprise: gas-liquid mixed reactor, roof is formed with gas approach, sidewall is formed with exhanst gas outlet, inside is provided with reaction rotating cylinder, and flue gas and medicament react on the reaction rotating cylinder of gas-liquid mixed inside reactor, to remove heavy metal in flue gas and arsenic; Rotate demister, sidewall is formed with gas approach, roof is formed with exhanst gas outlet, inside is provided with dehumidifying rotating cylinder, the gas approach rotated on demister sidewall is connected with the exhanst gas outlet in gas-liquid mixed sidewall of reactor, and the moisture in flue gas can be removed by the dehumidifying rotating cylinder rotating demister inside.
Fume treatment auxiliary of the present invention adopts liquid film gas cross-flow technology purifying smoke, compared with the gas cleaning of routine, the contact area of its gas-liquid mass transfer enlarges markedly, improve reaction efficiency, reduce chemical feeding quantity, for enterprise decreases Environmental Inputs, also effectively retain the PM2.5 in flue gas simultaneously, prevented the outer row of PM2.5.
Accompanying drawing explanation
Fig. 1 is the structural representation of fume treatment auxiliary of the present invention;
Fig. 2 is the sectional view of the gas-liquid mixed reactor in fume treatment auxiliary of the present invention;
Fig. 3 is the sectional view of the rotation demister in fume treatment auxiliary of the present invention.
Detailed description of the invention
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of fume treatment auxiliary of the present invention.
As shown in Figure 1 to Figure 3, fume treatment auxiliary of the present invention comprises gas-liquid mixed reactor 1 and rotates demister 2, for the heavy metal removed in flue gas and arsenic.Wherein, pending flue gas can rawly with medicament hybrid concurrency in gas-liquid mixed reactor 1 react, and then generates the mud of the pollution such as heavy metal and arsenic, to be separated with flue gas; The smoke moisture reacted in gas-liquid mixed reactor 1 is comparatively large, discharges after can removing the moisture in flue gas in follow-up rotation demister 2 again.
Further, as shown in Figure 1, the roof of gas-liquid mixed reactor 1 is formed with gas approach 11, sidewall is formed with exhanst gas outlet 12, inside is provided with reaction rotating cylinder 13, flue gas and medicament react on the reaction rotating cylinder 13 of gas-liquid mixed reactor 1 inside, to remove heavy metal in flue gas and arsenic.
Further, as shown in Figure 2, gas-liquid mixed reactor 1 comprises reactor shell 14, it is inner that rotating reaction rotating cylinder 13 is arranged on reactor shell 14, the sidewall of reaction rotating cylinder 13 is formed with medicament nethike embrane 15, flue gas can react with the medicament on medicament nethike embrane 15, to remove heavy metal in flue gas and arsenic.Wherein, medicament nethike embrane 15 in the present invention reacts rotating cylinder 13 top layer and the high opening rate net with certain thickness and unlike material for being placed in, medicament can be made under the effect of the atomizer described hereinafter to fill in medicament nethike embrane 15, enlarge markedly the specific area of medicament, make flue gas fully can contact medicament when passing medicament nethike embrane 15 and promote treatment effeciency.
Further, reaction rotating cylinder 13 inside is provided with medicament shower 16, medicament shower 16 is connected with formulation reservoir 3, medicament shower 16 is provided with the atomizer of the medicament nethike embrane 15 on orientating reaction rotating cylinder 13 sidewall, and medicament can evenly be sprayed on medicament nethike embrane 15 by atomizer.In addition, reactor shell 14 inside is also provided with flusher 17, and flusher 17, between the inwall and the outer wall of reaction rotating cylinder 13 of reactor shell 14, can rinse reaction rotating cylinder 13.It should be noted, the medicament shower 16 in the present invention, flusher 17 can adopt spray, flusher conventional in this area.
Further, the bottom of reactor shell 14 is provided with centrifuge rotor 18, and centrifuge rotor 18 is connected with motor 5 by transmission mechanism 19, and reaction rotating cylinder 13 is arranged on centrifuge rotor 18, can by centrifuge rotor 18 driven rotary.Wherein, centrifuge rotor 18, transmission mechanism 19 can adopt rotation conventional in this area, drive mechanism, and motor 5 can adopt reducing motor.
Further, as shown in Figure 3, the sidewall of rotation demister 2 is formed with gas approach 21, roof is formed with exhanst gas outlet 22, inside is provided with dehumidifying rotating cylinder 23, the gas approach 21 rotated on demister 2 sidewall is connected with the exhanst gas outlet 12 on gas-liquid mixed reactor 1 sidewall, and the moisture in flue gas can be removed by the dehumidifying rotating cylinder 23 rotating demister 2 inside.
Further, rotate demister 2 and comprise demister housing 24, it is inner that rotating dehumidifying rotating cylinder 23 is arranged on demister housing 24, and the sidewall of dehumidifying rotating cylinder 23 is formed with demist nethike embrane 25, and the moisture in flue gas can be removed by demist nethike embrane 25.Wherein, demist nethike embrane 25 in the present invention is for being placed in dehumidifying rotating cylinder 23 top layer and having the high opening rate net of certain thickness and unlike material, the steam of flue gas in time passing demist nethike embrane 25 outside to inside in flue gas and the mesh wall generation multiple impacts of demist nethike embrane 25, moisture can be stayed on demist nethike embrane 25 and throw away, to reach except fog effect along with the rotation of dehumidifying rotating cylinder 23.In addition, demister housing 24 inside is also provided with flusher 26, and flusher 26, between the inwall and the outer wall of dehumidifying rotating cylinder 23 of demister housing 24, can rinse dehumidifying rotating cylinder 23.
Further, the bottom of demister housing 24 is provided with centrifuge rotor 27, and centrifuge rotor 27 is connected with motor 5 by transmission mechanism 28, and dehumidifying rotating cylinder 23 is arranged on centrifuge rotor 27, can by centrifuge rotor 27 driven rotary.
Further, as shown in Figure 1, gas-liquid mixed reactor 1 is connected with formulation reservoir 3, connecting pipeline is provided with medicament filter 4, and the medicament in formulation reservoir 3 enters in gas-liquid mixed reactor 1 after medicament filter 4 filters.Wherein, formulation reservoir 3 can remove the medicament of the pollutant such as heavy metal in flue gas and arsenic for dissolving, and medicament filter 4, for filtering the medicament dissolved in formulation reservoir 3, blocks atomizer to prevent the insoluble matter of trace from entering in medicament shower 16.
Further, the diapire of gas-liquid mixed reactor 1 is formed with reactor sewage draining exit 10, the diapire of rotation demister 2 is formed with demister sewage draining exit 20, reactor sewage draining exit 10 is connected with medicament filter 4 with demister sewage draining exit 20, and medicament filter 4 can filtered and recycled gas-liquid mixed reactor 1 and the medicament rotating discharge in demister 2.Wherein, the clarification medicament after being separated in medicament filter 4 can be transported to further in gas-liquid mixed reactor 1 and continue to use, and the mud after separation arranges disposal outward.
The specific works flow process of fume treatment auxiliary of the present invention is as follows:
1) in formulation reservoir 3, add medicament and be diluted with water the ratio needed, then undissolved part is filtered out via medicament filter 4, then pumped in the medicament shower 16 in gas-liquid mixed reactor 1 by corrosion-resistant pump 6, be ejected on the medicament nethike embrane 15 of reaction rotating cylinder 13 sidewall finally by the atomizer on medicament shower 16, to form medicament liquid film on medicament nethike embrane 15.
2) pending flue gas enters into the inside of reaction rotating cylinder 13 from the gas approach 11 gas-liquid mixed reactor 1 roof, and pass medicament nethike embrane 15 from inside to outside, flue gas is meeting and the medicament liquid film Homogeneous phase mixing on medicament nethike embrane 15 in the process passing medicament nethike embrane 15, and the pollutants such as the heavy metal in flue gas and arsenic and medicament liquid film react and form complexing mud.In equipment running process, reaction rotating cylinder 13 constantly rotates, atomizer on medicament shower 16 constantly forms new liquid film on medicament nethike embrane 15, the mud that reaction produces throws away reaction rotating cylinder 13 by rotation, reacted mud and the medicament not participating in reaction are flowed to bottom gas-liquid mixed reactor 1 is discharged by reactor sewage draining exit 10, and is separated with mud by the medicament that medicament filter 4 can continue reuse.In addition, can regularly open flusher 17, discharge so that the mud not throwing away reaction rotating cylinder 13 is sprayed.
3) flue gas after gas-liquid mixed reactor 1 process increases to some extent due to the reason humidity of moisture in medicament, reacts rear flue gas and enters rotation demister 2 by the exhanst gas outlet 12 on gas-liquid mixed reactor 1 sidewall and the gas approach 21 rotated on demister 2 sidewall.Enter the flue gas rotating demister 2 and penetrate dehumidifying rotating cylinder 23 inside from dehumidifying rotating cylinder 23 outside, after being then discharged to flue collector via the exhanst gas outlet 22 rotated on demister 2 roof, enter smoke stack emission.In equipment running process, dehumidifying rotating cylinder 23 constantly rotates, time flue gas is through the demist nethike embrane 25 dehumidified on rotating cylinder 23 sidewall, moisture in flue gas can condense on demist nethike embrane 25, the drop of condensation on demist nethike embrane 25 throws away dehumidifying rotating cylinder 23 by rotating, and be finally pooled to demister sewage draining exit 20 place rotated bottom demister 2 and discharge, and be separated with mud by the medicament that medicament filter 4 can continue reuse.In addition, flusher 26 can regularly be opened, to open up on demist nethike embrane 25 by mesh that solid content blocks.
Adopt the 10000m per hour that the said equipment technological process makes
3treatment facility carried out the ring collection flue gas removal heavy metal of month by a definite date and the test of arsenic at certain copper smelting plant.The average removal rate that the import and export data that test obtains are tried to achieve is as follows:
| Pollutant | Copper | Plumbous | Zinc | Arsenic | SO 2 |
| Average removal rate | 73.20％ | 66.80％ | 64.40％ | 67.30％ | 97.60％ |
Known by upper table, under the prerequisite meeting existing Passing Criteria, each heavy metal and arsenic and sulfur dioxide have good clearance.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (10)
1. a fume treatment auxiliary, for removing heavy metal in flue gas and arsenic, is characterized in that, comprise:
Gas-liquid mixed reactor (1), roof is formed with gas approach (11), sidewall is formed with exhanst gas outlet (12), inside is provided with reaction rotating cylinder (13), flue gas and medicament react on the reaction rotating cylinder (13) that gas-liquid mixed reactor (1) is inner, to remove heavy metal in flue gas and arsenic;
Rotate demister (2), sidewall is formed with gas approach (21), roof is formed with exhanst gas outlet (22), inside is provided with dehumidifying rotating cylinder (23), the gas approach (21) rotated on demister (2) sidewall is connected with the exhanst gas outlet (12) on gas-liquid mixed reactor (1) sidewall, and the moisture in flue gas can remove by rotating the inner dehumidifying rotating cylinder (23) of demister (2).
2. fume treatment auxiliary according to claim 1, it is characterized in that, gas-liquid mixed reactor (1) comprises reactor shell (14), it is inner that rotating reaction rotating cylinder (13) is arranged on reactor shell (14), the sidewall of reaction rotating cylinder (13) is formed with medicament nethike embrane (15), flue gas can react with the medicament on medicament nethike embrane (15), to remove heavy metal in flue gas and arsenic.
3. fume treatment auxiliary according to claim 2, it is characterized in that, reaction rotating cylinder (13) inside is provided with medicament shower (16), medicament shower (16) is connected with formulation reservoir (3), medicament shower (16) is provided with the atomizer of the medicament nethike embrane (15) on orientating reaction rotating cylinder (13) sidewall, medicament can be sprayed on medicament nethike embrane (15) by atomizer.
4. fume treatment auxiliary according to claim 2, it is characterized in that, reactor shell (14) inside is provided with flusher (17), flusher (17) is positioned between the inwall of reactor shell (14) and the outer wall of reaction rotating cylinder (13), can rinse reaction rotating cylinder (13).
5. fume treatment auxiliary according to claim 2, it is characterized in that, the bottom of reactor shell (14) is provided with centrifuge rotor (18), centrifuge rotor (18) is connected with motor (5) by transmission mechanism (19), reaction rotating cylinder (13) is arranged on centrifuge rotor (18), can by centrifuge rotor (18) driven rotary.
6. fume treatment auxiliary according to claim 1, it is characterized in that, rotate demister (2) and comprise demister housing (24), it is inner that rotating dehumidifying rotating cylinder (23) is arranged on demister housing (24), the sidewall of dehumidifying rotating cylinder (23) is formed with demist nethike embrane (25), and the moisture in flue gas can be removed by demist nethike embrane (25).
7. fume treatment auxiliary according to claim 6, it is characterized in that, demister housing (24) inside is provided with flusher (26), flusher (26) is positioned between the inwall of demister housing (24) and the outer wall of dehumidifying rotating cylinder (23), can rinse dehumidifying rotating cylinder (23).
8. fume treatment auxiliary according to claim 6, it is characterized in that, the bottom of demister housing (24) is provided with centrifuge rotor (27), centrifuge rotor (27) is connected with motor (5) by transmission mechanism (28), dehumidifying rotating cylinder (23) is arranged on centrifuge rotor (27), can by centrifuge rotor (27) driven rotary.
9. fume treatment auxiliary according to claim 1, it is characterized in that, gas-liquid mixed reactor (1) is connected with formulation reservoir (3), connecting pipeline is provided with medicament filter (4), the medicament in formulation reservoir (3) enters in gas-liquid mixed reactor (1) after medicament filter (4) filters.
10. fume treatment auxiliary according to claim 9, it is characterized in that, the diapire of gas-liquid mixed reactor (1) is formed with reactor sewage draining exit (10), the diapire of rotation demister (2) is formed with demister sewage draining exit (20), reactor sewage draining exit (10) is connected with medicament filter (4) with demister sewage draining exit (20), and medicament filter (4) can filtered and recycled gas-liquid mixed reactor (1) and the middle medicament of discharging of rotation demister (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017060.9A CN104524952B (en) | 2015-01-13 | 2015-01-13 | A kind of fume treatment auxiliary |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510017060.9A CN104524952B (en) | 2015-01-13 | 2015-01-13 | A kind of fume treatment auxiliary |
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| CN104524952A true CN104524952A (en) | 2015-04-22 |
| CN104524952B CN104524952B (en) | 2016-08-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268283A (en) * | 2016-09-14 | 2017-01-04 | 湖南省小尹无忌环境能源科技开发有限公司 | Cement kiln flue gas removes heavy metal and sulfur nitre pollutant and the method for recycling |
| CN106422538A (en) * | 2016-12-13 | 2017-02-22 | 厦门爱迪特环保科技有限公司 | Spraying type exhaust gas demisting and purifying device |
| CN108355449A (en) * | 2018-04-27 | 2018-08-03 | 马鞍山金安环境科技有限公司 | A kind of waste gas dust-removal device settling box |
| CN114053816A (en) * | 2021-11-26 | 2022-02-18 | 江苏永诚装备科技有限公司 | Centrifugal multi-stage natural gas separator |
| CN114307526A (en) * | 2021-12-27 | 2022-04-12 | 黄绍荣 | Combined process for treating UV paint spraying waste gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268283A (en) * | 2016-09-14 | 2017-01-04 | 湖南省小尹无忌环境能源科技开发有限公司 | Cement kiln flue gas removes heavy metal and sulfur nitre pollutant and the method for recycling |
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| CN114053816A (en) * | 2021-11-26 | 2022-02-18 | 江苏永诚装备科技有限公司 | Centrifugal multi-stage natural gas separator |
| CN114307526A (en) * | 2021-12-27 | 2022-04-12 | 黄绍荣 | Combined process for treating UV paint spraying waste gas |
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| CN104524952B (en) | 2016-08-31 |
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Effective date of registration: 20161019 Address after: 730000, Chang 800 Su ha, Chengguan District, Gansu, Lanzhou Patentee after: Lanzhou Jeff Bio-Environment Project Co., Ltd. Address before: 730000, Gansu City, Lanzhou Province, Zhang Su beach, 800 hi tech building, 6 floor Czech Express Company Patentee before: Cui Tao Patentee before: Cui Shusheng |
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Granted publication date: 20160831 Termination date: 20190113 |
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